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An armed man was shot and killed Thursday at the federal courthouse in Tennessee's largest city, police said.

The incident took place as the man in question was attempting to carry out an attack, police said during a Thursday morning news conference.

This is a developing story. Check back here for updates.

Eric Mack is a breaking news reporter and writer Sunday through Thursday, 6 a.m. ET to 2 p.m. ET, with a particular interest in stories that lead the news cycle on politics, elections, foreign affairs and government.

The hottest stories ripped from the headlines, from crime to courts, legal and scandal.

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